Honeywell FMZ Series Pilot's Manual page 426

Flight Management System (FMS) for the Agusta AW139/AB139 Helicopter
The following line select keys correspond to the associated definitions
on the PROGRESS 3/3 page.
1L -- The current cross track (XTK) error relative to the active leg of
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the flight plan is displayed on this line. A 0.01 NM resolution is used
when the cross track error is less than 1 NM. Larger cross track
errors are displayed using a 0.1 NM resolution. No entry is
permitted.
1R -- This line permits pilot entry of offset. Procedure 8--1 describes
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how to enter and remove an offset.
2L and 2R -- Aircraft track, drift, and heading is displayed on this line.
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3L and 3R -- The FMS computed winds and ground speed are
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displayed on this line.
6L -- This prompt gives access to the AIR DATA page.
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6R -- This prompt gives access to the FLIGHT SUMMARY page.
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Progress
8-4
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Figure 8- -3
PROGRESS 3/3 Page
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REV 3 Mar 2009